Package com.amazonaws.services.dynamodbv2.model

Examples of com.amazonaws.services.dynamodbv2.model.TableDescription

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    public <T> PaginatedScanList<T> scan(Class<T> clazz, DynamoDBScanExpression scanExpression, DynamoDBMapperConfig config) {
        config = mergeConfig(config);

        ScanRequest scanRequest = createScanRequestFromExpression(clazz, scanExpression, config);

        ScanResult scanResult = db.scan(applyUserAgent(scanRequest));
        return new PaginatedScanList<T>(this, clazz, db, scanRequest, scanResult);
    }
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    public <T> ScanResultPage<T> scanPage(Class<T> clazz, DynamoDBScanExpression scanExpression, DynamoDBMapperConfig config) {
        config = mergeConfig(config);

        ScanRequest scanRequest = createScanRequestFromExpression(clazz, scanExpression, config);

        ScanResult scanResult = db.scan(applyUserAgent(scanRequest));
        ScanResultPage<T> result = new ScanResultPage<T>();
        result.setResults(marshallIntoObjects(clazz, scanResult.getItems()));
        result.setLastEvaluatedKey(scanResult.getLastEvaluatedKey());

        return result;
    }
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        ScanRequest scanRequest = createScanRequestFromExpression(clazz, scanExpression, config);
        scanRequest.setSelect(Select.COUNT);

        // Count scans can also be truncated for large datasets
        int count = 0;
        ScanResult scanResult = null;
        do {
            scanResult = db.scan(applyUserAgent(scanRequest));
            count += scanResult.getCount();
            scanRequest.setExclusiveStartKey(scanResult.getLastEvaluatedKey());
        } while (scanResult.getLastEvaluatedKey() != null);

        return count;
    }
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     * @return True if a table already exists with the specified name, otherwise
     *         false.
     */
    public static boolean doesTableExist(AmazonDynamoDB dynamo, String tableName) {
        try {
            TableDescription table = dynamo.describeTable(new DescribeTableRequest(tableName)).getTable();
            return TableStatus.ACTIVE.toString().equals(table.getTableStatus());
        } catch (ResourceNotFoundException rnfe) {
            // This means the table doesn't exist in the account yet
            return false;
        }
    }
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    public static void waitForTableToBecomeActive(AmazonDynamoDB dynamo, String tableName) {
        long startTime = System.currentTimeMillis();
        long endTime = startTime + (10 * 60 * 1000);
        while (System.currentTimeMillis() < endTime) {
            try {
                TableDescription table = dynamo.describeTable(new DescribeTableRequest(tableName)).getTable();
                if (table != null && table.getTableStatus().equals(TableStatus.ACTIVE.toString()))
                    return;
            } catch (ResourceNotFoundException rnfe) {
                // ResourceNotFound means the table doesn't exist yet,
                // so ignore this error and just keep polling.
            }
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     * @return True if a table already exists with the specified name, otherwise
     *         false.
     */
    public static boolean doesTableExist(AmazonDynamoDB dynamo, String tableName) {
        try {
            TableDescription table = dynamo.describeTable(new DescribeTableRequest(tableName)).getTable();
            return TableStatus.ACTIVE.toString().equals(table.getTableStatus());
        } catch (ResourceNotFoundException rnfe) {
            // This means the table doesn't exist in the account yet
            return false;
        }
    }
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            throw new AmazonClientException("Interval must be > 0 and < timeout");
        long startTime = System.currentTimeMillis();
        long endTime = startTime + timeout;
        while (System.currentTimeMillis() < endTime) {
            try {
                TableDescription table = dynamo.describeTable(new DescribeTableRequest(tableName)).getTable();
                if (table != null && table.getTableStatus().equals(TableStatus.ACTIVE.toString()))
                    return;
            } catch (ResourceNotFoundException rnfe) {
                // ResourceNotFound means the table doesn't exist yet,
                // so ignore this error and just keep polling.
            }
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//    @Test
    public void howToDeleteTable() throws InterruptedException {
        String TABLE_NAME = "myTableForMidLevelApi";
        Table table = dynamo.getTable(TABLE_NAME);
        // Wait for the table to become active or deleted
        TableDescription desc = table.waitForActiveOrDelete();
        if (desc == null) {
            System.out.println("Table " + table.getTableName()
                    + " does not exist.");
        } else {
            table.delete();
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                // Create a table with a primary hash key named 'name', which holds a string
                CreateTableRequest createTableRequest = new CreateTableRequest().withTableName(tableName)
                    .withKeySchema(new KeySchemaElement().withAttributeName("name").withKeyType(KeyType.HASH))
                    .withAttributeDefinitions(new AttributeDefinition().withAttributeName("name").withAttributeType(ScalarAttributeType.S))
                    .withProvisionedThroughput(new ProvisionedThroughput().withReadCapacityUnits(1L).withWriteCapacityUnits(1L));
                    TableDescription createdTableDescription = dynamoDB.createTable(createTableRequest).getTableDescription();
                System.out.println("Created Table: " + createdTableDescription);

                // Wait for it to become active
                System.out.println("Waiting for " + tableName + " to become ACTIVE...");
                Tables.waitForTableToBecomeActive(dynamoDB, tableName);
            }

            // Describe our new table
            DescribeTableRequest describeTableRequest = new DescribeTableRequest().withTableName(tableName);
            TableDescription tableDescription = dynamoDB.describeTable(describeTableRequest).getTable();
            System.out.println("Table Description: " + tableDescription);

            // Add an item
            Map<String, AttributeValue> item = newItem("Bill & Ted's Excellent Adventure", 1989, "****", "James", "Sara");
            PutItemRequest putItemRequest = new PutItemRequest(tableName, item);
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        fillInData(dynamo);
    }

    private static void createTable(DynamoDB dynamo) throws InterruptedException {
        Table table = dynamo.getTable(TABLE_NAME);
        TableDescription desc = table.waitForActiveOrDelete();
        if (desc == null) {
            // table doesn't exist; let's create it
            KeySchemaElement hashKey =
                new KeySchemaElement(HASH_KEY, KeyType.HASH);
            KeySchemaElement rangeKey =
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Related Classes of com.amazonaws.services.dynamodbv2.model.TableDescription

  • AmazonDynamoDBSample
  • com.amazonaws.auth.DefaultAWSCredentialsProviderChain
  • com.amazonaws.ClientConfiguration
  • com.amazonaws.handlers.HandlerChainFactory
  • com.amazonaws.http.ExecutionContext
  • com.amazonaws.http.JsonErrorResponseHandler
  • com.amazonaws.internal.StaticCredentialsProvider
  • com.amazonaws.metrics.internal.cloudwatch.provider.transform.DynamoDBRequestMetricTransformer
  • com.amazonaws.services.dynamodb.sessionmanager.util.DynamoUtils
  • com.amazonaws.services.dynamodbv2.datamodeling.ArgumentMarshaller.StringAttributeMarshaller
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